US PATENT SUBCLASS 72 / 95
.~.~ And longitudinal movement of work

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

67  DF  BY USE OF TOOL ACTING DURING RELATIVE ROTATION BETWEEN TOOL AND WORK ABOUT INTERNAL CENTER (E.G., GYRATING OR ROTATING TOOL) {10}
80  DF  .~ During rotation of work {12}
95.~.~ And longitudinal movement of work {4}
96  DF  .~.~.~> Using external rotating tool and internal core {1}
98  DF  .~.~.~> Using tool-surfaces spaced along axis of work rotation
99  DF  .~.~.~> Using hyperboloidal roller
100  DF  .~.~.~> Using tool-cluster

DEFINITION

Classification: 72/95

And longitudinal movement of work:

(under subclass 80) Subject matter wherein the work rotates about an axis, and travels along said axis, which axis coincides with the direction of the greatest dimension of the work during its rotation and deformation.

(1) Note. In the operation of forming a screw-threaded element, the element may move along its length as a result of its rotation about its length dimension. Such lengthwise movements, caused solely by the element being screwed into a deformer, is specifically excluded from the limitations of these subclasses (95+). Disclosure of such movement may be found in subclasses 88+, 91+, and 103+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

77+, for disclosure of a tool orbiting about longitudinally moving work.